US121084A - Improvement in drawing-knives - Google Patents
Improvement in drawing-knives Download PDFInfo
- Publication number
- US121084A US121084A US121084DA US121084A US 121084 A US121084 A US 121084A US 121084D A US121084D A US 121084DA US 121084 A US121084 A US 121084A
- Authority
- US
- United States
- Prior art keywords
- blade
- knives
- improvement
- shanks
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000001699 lower leg Anatomy 0.000 description 12
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 238000010276 construction Methods 0.000 description 8
- 229910001296 Malleable iron Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B9/00—Blades for hand knives
Description
THOMAS MfvcLAR'K.
Improvement in Drawingv Knives.
No. 121O8A.` Patentd N0v. 21,1a71.
NITED STATES IMPROVEMENT IN DRAWING-KNIVES.
Specication forming part of Letters Patent No. l21,084, dated November 21, 1871.
To all whom it may concern:
Be it known that I, THOMAS M. CLARKE, of Winsted, in the county of Litchfield and State of Connecticut, have invented a new Improvement in Drawing-Knives; and I do hereby declare the following, when taken in connection with the accompanying drawing and the letters of reference marked thereon, to be a full, clear, and exact description ofthe same, and which said drawing constitutes part of this specification, and represents in Figure 1, a top or front view; Fig. 2, a transverse section on line a: so; Fig. 3, a tranverse section on line z z; Fig. 4, a perspective view of the blade preparatory to attaching the shanks.
This invention relates to an improvement in the construction of drawing-knives, or what are sometimes called shaves, the object being to produce a better article and at less eXpensethan the common construction, wherein the blade and shanks are forged in one and the same piece; and the invention consists in forming the blade from a flat piece or sheet of steel or other metal, corrugated longitudinally to give the requisite strength, and riveted or otherwise secured to or made a part of the shanks, formed independent of the said blade.
A, Fig. 4, is the blade, which is formed from flat thin metal-may be from sheet metal, and wholly or in part of steeland constructed with one or more corrugations, c, running longitudinally, which strengthens the blade against a transverse strain. B B are the Shanks, made from malleable or wrought metal, so as to lap onto the blade, and riveted thereto, as denoted in Fig. 3, or otherwise united, as by brazing. Riveting, however, is believed to be the best and cheapest; but, if preferred, the blade and shanks may be in one and the same piece.
By this construction I am enabled to roll the metal for the blade in longitudinal strips, which may be cut to the required length, and also to form the shanks from malleable iron; and the process of uniting being extremely simple, I produce a drawing-knife fully equal to the common construction and at a reduced cost.
I claim as my invention- As an article of fmanufacture, a drawing-knife in which the blade is formed from thin metal corru gated longitudinally, substantially as set forth.
THOMAS M. CLARKE.
Witnesses:
RUEUs E. HoLivrEs, GEORGE S. RowE. (49)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US121084A true US121084A (en) | 1871-11-21 |
Family
ID=2190528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US121084D Expired - Lifetime US121084A (en) | Improvement in drawing-knives |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US121084A (en) |
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0
- US US121084D patent/US121084A/en not_active Expired - Lifetime
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